图像垂直和水平居中的可点击div

Question

I need to create a clickable div with an image (of variable size, but that is smaller than the div) centered both horizontally and vertically within the div. 我需要创建一个可点击的div，其图像（大小可变，但小于div）在div中水平和垂直居中。

I made the div clickable with 我使div可点击

    #image-box a { display: block; height: 100%; width: 100%; }

but can't seem to center the image vertically. 但似乎无法使图像垂直居中。

Answer 1

Try this adjusting width and height of your a element as explained in the comments: 尝试按照注释中的说明调整元素的宽度和高度：

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
   "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Centered Clickable Image</title>
    <style type="text/css" media="screen">
    #image-box {
            position:absolute; 
            top:0; bottom:0; left:0; right:0;
            margin:auto; 
            border: 1px solid #999;
            text-align: center;
            }

    #image-box a {display:block; position:absolute; 
            top:0; bottom:0; left:0; right:0;
            margin:auto; text-align: center;
            }

    /* insert the same width and height of your-nice-img.png */
    #image-box a {width:339px; height:472px; border: 2px solid red;}
</style>
</head>
<body>    
    <div id="image-box">
        <a href="#">
            <img src="your-nice-image.png" alt="image to center"/>
        </a>
    </div>
</body>
</html>

NOTES: Borders are needed only for visual debug, You can delete them at any time. 注意：仅对于视觉调试才需要边框，您可以随时删除它们。

The trick here is that you use an absolute positioned div ( #image-box ) with a fixed width and height. 这里的窍门是，您使用具有固定宽度和高度的绝对定位的div（ #image-box ）。

If you set the #image-box a top and bottom position to zero the rule margin:auto puts #image-box a element in a middle position (on the vertical axis) because it has a fixed height, . 如果将#image-box a顶部和底部位置设置为零，则规则margin:auto将#image-box a元素固定在中间位置（在垂直轴上），因为该元素的高度固定。

If you can or like to solve It using jQuery, try this: 如果您可以或喜欢使用jQuery解决问题，请尝试以下操作：

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Centered Image</title>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>

    </head>
    <body>
        <div id="image-box">
            <a href="#">
                <img src="canning.png" alt="image to center"/>
            </a>
        </div>

    <script type="text/javascript" charset="utf-8">
    $(document).ready(function(){
        $(window).resize(function(){
            $('#image-box a').css({
                position:'absolute',
                left: ($(window).width() - $('#image-box a img').outerWidth())/2,
                top: ($(window).height() - $('#image-box a img').outerHeight())/2
            });
        });
            // first run
        $(window).resize();
    });
    </script>
    </body>
    </html>

图像垂直和水平居中的可点击div

问题描述

1 个解决方案

解决方案1
1 已采纳 2011-06-21 08:53:00

图像垂直和水平居中的可点击div

问题描述

1 个解决方案

解决方案1 1 已采纳 2011-06-21 08:53:00

解决方案1
1 已采纳 2011-06-21 08:53:00